3.0 (turbocharging)

I got a 92 LEBARON with th 3.0liter N/A mitsubishi motor. its got 50k miles on it and i was wondering what performance options I have. If its not worth it, can i swap a 2.5t in? will it match up with mounts? Where can I buy one? Also I heard the 3.0 can be turbocharged really easy. If so what exhaust manifold would I use? Just an idea since its a dodge could i swap in a 92 vr4 engine or maybe a later year? hehe Oh and one more thing, If i turbocharge my 3.0 where can I get a LSD so all my wheels will spin.

[93DaytonaR]

Possible yes, easy no. If you want to really boost it you will have to get a stand alone fuel system or you will only be able to boost it about 5psi.

[not2quick]

Quote:

Originally Posted by DJTiest0 I got a 92 LEBARON with th 3.0liter N/A mitsubishi motor. its got 50k miles on it and i was wondering what performance options I have. If its not worth it, can i swap a 2.5t in? will it match up with mounts? Where can I buy one? Also I heard the 3.0 can be turbocharged really easy. If so what exhaust manifold would I use? Just an idea since its a dodge could i swap in a 92 vr4 engine or maybe a later year? hehe Oh and one more thing, If i turbocharge my 3.0 where can I get a LSD so all my wheels will spin.

My 3.0 is N/A, and i'm currently running a 14.65 1/4. I plan on hitting high 13's N/A this summer. Don't let the 3.0 fool you, it responds great to mods and is a torque monster

[Harvii]

Quote:

Originally Posted by 93DaytonaR Possible yes, easy no. If you want to really boost it you will have to get a stand alone fuel system or you will only be able to boost it about 5psi.

I ran 15lbs of boost through my supercharged setup =). Used T2 injectors(33# units) and a vortech Super FMU for fuel managment(still running the stock computer). Has OE bottom end to. The only boost related problems I had were blow by(125K on the original motor will do that and a rebuild fixed the problem) and tire spinnage.

http://harv.f0e.net/engine.jpg

Harv

[Reaper1]

Do some more searching on the net. There are a LOT of people now in process of boosting the 3.0. Yahoogroups has a few mailing lists you may be interested in too. The 3.0 is a very robust engine and is just now being expored for its true potential by many people. I know of one that put out 400hp, but that was on nitrose. There is also some information on this list about them too...run a search. I know I posted some information myself...
HTH.

how much for th supercharger? and where did you get it?

[Turbo3.0]

Turbocharging the 3.0 definitely isn't a weekend project and requires a lot of time and custom work, but in my opinion it's well worth it. The amount of low end torque you get out of the engine is just ridiculous. You don't necessarily need a stand alone computer. I was running 9-10psi fine with just a s-afc piggy pack computer.
http://memimage.cardomain.net/member...68_29_full.jpg

I'm currently swapping a '95 3000gt engine into my acclaim, and so far everything fits, so that is always another option too.
http://memimage.cardomain.net/member...68_50_full.jpg

[mwinkle353]

Quote:

Originally Posted by 93DaytonaR Possible yes, easy no. If you want to really boost it you will have to get a stand alone fuel system or you will only be able to boost it about 5psi.

you won't "NEED" a stand alone to run boost. How did the turbo dodges run more than 15psi of boost when they didn't have the custome calibrations they have now? I know of many ways to add the fuel to compensate for your boosted airfow.

One is to use a FMU. Or commonly called an adjustable rising rate of gain fuel regulator. You can use stock injectors for about 5 psi of boost. But buy then, those 19# injectors will have about 100 psi behind them. I'm going with slightly larger injectors at lower base pressure. I'm tricking the PCM into thinking that the 30# injectors are still 19# by lowing my fuel pressure to 25 psi or so. I then increase the fuel pressure with a FMU when on boost. This way I am able to raise the MAX boost level of the fuel limits. I figure I'm good to about 14 psi of boost with 30# injectors.

Another way is to run a seperate "mapped" injector controller with auxillary fuel injectors. This way the stock injection is unaffected and works as usual when not boosting. But when boost is seen, the stock fuel injection and the aux fuel injectors/controller will have the ability to go to the limits of the aux injector size and the pressure sensor within the controller. 034EFI, HKS, Split Second, and Haltech each have decent injector controllers. I have seen sets that include an extra 6 injectors (two injectors per intake runner).

Lastly and the most crude method is to run cold start injectors from European vehicles that had mechanical injection. I've seen them on VW, BMW, Porche, and Saab vehicles. These are not pulsed like standard injectors. They are just held open and flow a certain amount of fuel per unit. You have to use pressure switches or a compairator circuit to actuate these. And you'll need many installed into the intake before the throttle body to make any real power while on boost. Each cold start injector is only worth about 15-30 hp worth of fuel.

But the best way that is not just a bandaid solution to your fuel controlling needs is a stand-alone PCM. They are expensive, but they will provide the best amount of control over the entire fuel and ignition sequences.

Just a few ideas,

Wink


PS Just as a note, the 3.0L doesn't have a fuel cut feature. If the map sensor sees above 1.25 psi of boost, the computer will not freak out and create havok with the fuel delivery. It will just not add any more fuel. It's like hitting the peak of a mountain. There's just no where to go from there but down.

hmmm those pics of the turbo 3.0 are nice. I wish I had enormous ammounts of time on my hands to do that. by any chance would you happen to have a recipie book for what u did. cause i wanna do the same thing you did to your car. I guess i can pay to have someone do it for me.

[Harvii]

DJ, I got the super off of ebay and built all the brackets and plumbing myself. Took me about 1/2 a year to get it all together.

Harv

[92lebaronGTC]

Wow that was one beautiful supercharged 3.0!

[John Neff]

Quote:

Originally Posted by Harvii DJ, I got the super off of ebay and built all the brackets and plumbing myself. Took me about 1/2 a year to get it all together. Harv

I like that 3.0 Supercharger set up...You think it might work on a 95 Caravan? How much power you gain with this? Very nice little set up.
You should build another one and just see how much people around here would be interested in purchasing this...I know I am!

[Koreth]

I've always thought it would be fun to take the 3.0, put it in a G or J body convert to RWD and then do some sort of twin turbo setup on it.

[92lebaronGTC]

Quote:

Originally Posted by not2quick My 3.0 is N/A, and i'm currently running a 14.65 1/4. I plan on hitting high 13's N/A this summer. Don't let the 3.0 fool you, it responds great to mods and is a torque monster

How much does your car weigh? What kinda of hp/tq levels are you at? It would be so sick to get a n/a 3.0 lebaron to do those sorta numbers without forced induction. I'm at a miserable stock weight of 3000lbs, well probably 2900 now for some of the crap I removed from the interior/trunk and all. I need to either get a g-tech, find some that will let me borrow theirs, or take my car across town to the track on street night to see my times. What mods are you running with that 3.0L?

-steve

[92lebaronGTC]

We need someone to create an offical list of parts you can use to make a turbo 3.0 setup, same goes with a supercharger, someone needs to post all the parts you need and the prices.